| TMVR CHOICE-MI (Ludwig et al. 2023a) |
| n=400; technical success 95.2%; MR ≤1+ at discharge in 95.2%; 30-day mortality 9.2%; 1-year mortality 27.9%; 2-year mortality 38.1%. |
| Non-comparative registry; high attrition and limited long-term comparative data. |
| TMVR vs TEER (Ludwig et al. 2023b) |
| TMVR n=235 vs TEER n=411 (propensity-matched); 30-day mortality 6.8% vs 3.8%; 1-year mortality 25.8% vs 18.9%; no significant mortality difference beyond 30 days. |
| Observational with propensity matching; residual confounding possible. |
| Carillon REDUCE FMR (Witte et al. 2019) |
| Randomized, sham-controlled RCT n=120 (treatment n=87, sham n=33); primary endpoint met: reduction in mitral regurgitant volume at 12 months; 84% implantation rate in treatment arm. |
| Proof-of-concept RCT not powered for clinical endpoints; high attrition in some studies and limited long-term data. |
| Alterra pivotal trial (Dimas et al. 2024) |
| 60 implanted (of 97 screened); no valve dysfunction at 6 months; at 2 years 92.5% had mild or less PR; no deaths or explants through 2 years. |
| Single-arm pivotal study; limited sample size and need for longer-term durability data. |
| COMPASSION S3 (Lim et al. 2023) |
| n=58; device success 98% at discharge; 1-year valve dysfunction composite 4.3%; no mortality, endocarditis, thrombosis, or stent fractures at 1 year. |
| Single-arm study with limited long-term follow-up; generalizability and durability uncertainties. |
| TPV outcomes (Melody/Harmony registries/trials) |
| Freedom from valve dysfunction or reintervention ~93.5% at 1 year; freedom from stent fracture 77.8% at 14 months; 10-year freedom from TPV dysfunction 53% (Jones et al. 2022). |
| Registry and cohort data with variable follow-up; pediatric/young adult populations; durability issues over long term. |
| TTVR TRISCEND II (EVOQUE) phase 2/phase 3 (Hahn et al. 2024 / TRISCEND II) |
| Phase 2/3 randomized trial full cohort n=400 (2:1 TTVR n=267 vs control n=133): 1-year mortality 12.6% vs 15.2%; HF hospitalization 20.9% vs 26.1%; KCCQ-OS ≥10 pts in 66.4% vs 36.5%; TR ≤ mild 95.3% vs 16.1%. |
| Open-label RCT with early safety signals (higher severe bleeding and pacemaker rates); follow-up relatively short and concerns about early adverse events. |
| TRISCEND safety signals (from trial reports) |
| Severe bleeding 15.4% (TTVR) vs 5.3% (control); new permanent pacemaker 17.4% vs 2.3%. |
| Safety concerns including bleeding and pacemaker need; open-label design limits some assessments. |
| T-TEER TRILUMINATE (TRILUMINATE RCT and single-arm data) |
| TRILUMINATE pivotal RCT n=350 (175 TriClip vs 175 medical): reduced TR severity (TR ≤2+ at 30 days 87% vs 4.8%); 2-year randomized data (n=572 in expanded RCT) showed reduced HF hospitalizations and sustained TR and QoL improvements; procedural success ~97% in meta-analyses. |
| Some endpoints (quality of life) possibly influenced by lack of participant masking; longer-term mortality benefit not established; crossover in trials affects some comparisons. |
| Sentinel cerebral protection RCT (Kapadia et al. 2022) |
| Large RCT n=3000: stroke within 72 hours 2.3% (CEP) vs 2.9% (control); disabling stroke 0.5% vs 1.3%; device deployment success ~94.4%. |
| No significant reduction in primary stroke endpoint; applies to Sentinel device only; short-term follow-up and applicability to other devices uncertain. |